Bump w9jds/firebase-action from 15.5.1 to 15.6.0 (#265)

Author: dependabot[bot]

.github/workflows/deploy.yml

@@ -60,7 +60,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Deploy to Firebase
-        uses: w9jds/firebase-action@v15.5.1
+        uses: w9jds/firebase-action@v15.6.0
         with:
           args: deploy --only hosting
         env: